EP 0420618 B1 19930331 - PISTON FOR INTERNAL COMBUSTION ENGINE
Title (en)
PISTON FOR INTERNAL COMBUSTION ENGINE
Publication
Application
Priority
- JP 25052789 A 19890928
- JP 33575389 A 19891225
Abstract (en)
[origin: EP0420618A1] In the axial direction of the piston (1) the skirt (2) has an upper portion above the axis (O7) of a piston pin hole (3) and a lower portion below the axis (O7). The upper portion has a first cross section formed in accordance with a first ellipse (Y2), and the lower portion has a second cross section formed in accordance with a second ellipse (X2). Each ellipse has its foci on a center plane (O8) of the piston (1) which is perpendicular to the axis (O7) of the hole (3). The first ellipse (Y2) is smaller in ellipticity than the second ellipse (X2). The skirt (2) includes a ramp portion smoothly connecting the upper portion to the lower portion.
IPC 1-7
IPC 8 full level
F02F 3/02 (2006.01)
CPC (source: EP US)
F02F 3/022 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0420618 A1 19910403; EP 0420618 B1 19930331; EP 0420618 B2 20000329; DE 69001229 D1 19930506; DE 69001229 T2 19930708; DE 69001229 T3 20000824; US 5107807 A 19920428
DOCDB simple family (application)
EP 90310546 A 19900926; DE 69001229 T 19900926; US 58054490 A 19900911